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Open Source and information security mailing list archives
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Date: Mon, 17 Sep 2007 10:21:53 +0400 From: Pavel Emelyanov <xemul@...nvz.org> To: Andrew Morton <akpm@...ux-foundation.org> CC: "Serge E. Hallyn" <serue@...ibm.com>, Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, devel@...nvz.org, Alexey Dobriyan <adobriyan@...nvz.org> Subject: Re: [PATCH 2/2] Fix user namespace exiting OOPs Andrew Morton wrote: > On Fri, 14 Sep 2007 13:23:55 -0500 "Serge E. Hallyn" <serue@...ibm.com> wrote: > >>> run on kernel with CONFIG_USER_NS turned on will oops the >>> kernel immediately. >>> >>> This was spotted during OpenVZ kernel testing. >>> >>> Signed-off-by: Pavel Emelyanov <xemul@...nvz.org> >>> Signed-off-by: Alexey Dobriyan <adobriyan@...nvz.org> >> Good spot. Interesting solution :) >> > > Do we want to fix this in 2.6.23? This is not a security issue at all. This BUG can be triggered only by CAP_SYS_ADMIN capable task on the kernel with CONFIG_USER_NS=y, which is an EXPERIMENTAL depending option. > If so then at present I'll need to merge > > kernel-userc-use-list_for_each_entry-instead-of-list_for_each.patch > convert-uid-hash-to-hlist.patch > fix-user-namespace-exiting-oops.patch > > which is rather a lot of merging at this stage - surely more than > is really needed? > Thanks, Pavel - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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